nswrap/ast/sentinel_attr.go
2019-04-09 11:52:21 -04:00

61 lines
1.4 KiB
Go

package ast
import (
"strings"
"github.com/elliotchance/c2go/util"
)
// SentinelAttr is a type of attribute that is optionally attached to a variable
// or struct field definition.
type SentinelAttr struct {
Addr Address
Pos Position
A int
B int
ChildNodes []Node
}
func parseSentinelAttr(line string) *SentinelAttr {
groups := groupsFromRegex(
`<(?P<position>.*)>(?P<a> \d+)(?P<b> \d+)?`,
line,
)
b := 0
if groups["b"] != "" {
b = util.Atoi(strings.TrimSpace(groups["b"]))
}
return &SentinelAttr{
Addr: ParseAddress(groups["address"]),
Pos: NewPositionFromString(groups["position"]),
A: util.Atoi(strings.TrimSpace(groups["a"])),
B: b,
ChildNodes: []Node{},
}
}
// AddChild adds a new child node. Child nodes can then be accessed with the
// Children attribute.
func (n *SentinelAttr) AddChild(node Node) {
n.ChildNodes = append(n.ChildNodes, node)
}
// Address returns the numeric address of the node. See the documentation for
// the Address type for more information.
func (n *SentinelAttr) Address() Address {
return n.Addr
}
// Children returns the child nodes. If this node does not have any children or
// this node does not support children it will always return an empty slice.
func (n *SentinelAttr) Children() []Node {
return n.ChildNodes
}
// Position returns the position in the original source code.
func (n *SentinelAttr) Position() Position {
return n.Pos
}